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Meters, pH & Calibration Solutions

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Grow More Grow More pH Down 30% Gallon

Grow More pH Down 30% Gallon
$22.24
Sure Test Sure Test pH Test Strip Kit 5.5 - 8.0

Sure Test pH Test Strip Kit 5.5 - 8.0
$11.59
General Hydroponics pH Test Indicator 8 oz

pH Test Indicator 8 oz
$14.68
Luster Leaf Rapitest Soil Test pH N,P,K

Rapitest Soil Test pH N,P,K
$17.99
Hanna Hanna GroLine HI98318 Waterproof EC/ TDS ppm Pen

Hanna GroLine HI98318 Waterproof EC/ TDS ppm Pen
$85.00
Hanna Hanna GroLine HI12943 Soil / Substrate pH Electrode for HI9814

Hanna GroLine HI12943 Soil / Substrate pH Electrode for HI9814
$215.00
BlueLab Bluelab pH Meter

Bluelab pH Meter
$224.75
BlueLab Bluelab Soil pH Replacement Probe

Bluelab Soil pH Replacement Probe
$110.00
BlueLab Bluelab Connect Range Extender

Bluelab Connect Range Extender
$205.00
HM Digital HM Digital Waterproof pH Meter

HM Digital Waterproof pH Meter
$99.95
HM Digital HM Digital HydroMaster HM-500

HM Digital HydroMaster HM-500
$359.00
BlueLab Bluelab Conductivity Pen

Bluelab Conductivity Pen
$104.94